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Diffstat (limited to 'Src/osmocom-bb/src/target/firmware/layer1/tpu_window.c')
-rw-r--r--Src/osmocom-bb/src/target/firmware/layer1/tpu_window.c166
1 files changed, 0 insertions, 166 deletions
diff --git a/Src/osmocom-bb/src/target/firmware/layer1/tpu_window.c b/Src/osmocom-bb/src/target/firmware/layer1/tpu_window.c
deleted file mode 100644
index 8d9c899..0000000
--- a/Src/osmocom-bb/src/target/firmware/layer1/tpu_window.c
+++ /dev/null
@@ -1,166 +0,0 @@
-/* TPU window control routines for Layer 1 */
-
-/* (C) 2010 by Harald Welte <laforge@gnumonks.org>
- *
- * All Rights Reserved
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-#include <stdint.h>
-#include <debug.h>
-#include <defines.h>
-#include <stdio.h>
-
-#include <rffe.h>
-#include <calypso/tpu.h>
-#include <calypso/tsp.h>
-#include <abb/twl3025.h>
-#include <rf/trf6151.h>
-
-#include <layer1/sync.h>
-#include <layer1/tpu_window.h>
-
-/* all units in GSM quarter-bits (923.1ns) */
-#define L1_TDMA_LENGTH_Q 5000
-#define L1_BURST_LENGTH_Q 625 /* L1_TDMA_LENGTH_Q/8 */
-
-#define L1_NB_MARGIN_Q (3 * 4)
-#define L1_SB_MARGIN_Q (23 * 4)
-#define L1_TAIL_DURATION_Q (3 * 4)
-
-/* Sample length as required by the Calypso DSP */
-#define L1_NB_DURATION_Q (L1_BURST_LENGTH_Q + 2 * L1_NB_MARGIN_Q - L1_TAIL_DURATION_Q)
-#define L1_SB_DURATION_Q (L1_BURST_LENGTH_Q + 2 * L1_SB_MARGIN_Q - L1_TAIL_DURATION_Q)
-#define L1_FB_DURATION_Q (11 * L1_TDMA_LENGTH_Q + 2057) /* more than 11 full slots */
-#define L1_FB26_DURATION_Q (L1_TDMA_LENGTH_Q + 798)
-#define L1_PW_DURATION_Q 289
-
-#define DSP_SETUP_TIME 66
-
-static const uint16_t rx_burst_duration[_NUM_L1_RXWIN] = {
- [L1_RXWIN_PW] = L1_PW_DURATION_Q,
- [L1_RXWIN_FB] = L1_FB_DURATION_Q,
- [L1_RXWIN_SB] = L1_SB_DURATION_Q,
- [L1_RXWIN_NB] = L1_NB_DURATION_Q,
-};
-
-#define L1_TX_NB_DURATION_Q 626
-#define L1_TX_AB_DURATION_Q 386
-
-static const uint16_t tx_burst_duration[_NUM_L1_TXWIN] = {
- [L1_TXWIN_NB] = L1_TX_NB_DURATION_Q,
- [L1_TXWIN_AB] = L1_TX_AB_DURATION_Q,
-};
-
-
-static int _win_setup(__unused uint8_t p1, __unused uint8_t p2, __unused uint16_t p3)
-{
- uint8_t tn;
-
- rfch_get_params(&l1s.next_time, NULL, NULL, &tn);
-
- l1s.tpu_offset = (5000 + l1s.tpu_offset + l1s.tpu_offset_correction) % 5000;
- l1s.tpu_offset_correction = 0;
-
- tpu_enq_at(4740);
- tpu_enq_sync((5000 + l1s.tpu_offset + (L1_BURST_LENGTH_Q * tn)) % 5000);
-
- return 0;
-}
-
-static int _win_cleanup(__unused uint8_t p1, __unused uint8_t p2, __unused uint16_t p3)
-{
- uint8_t tn;
-
- rfch_get_params(&l1s.next_time, NULL, NULL, &tn);
-
- /* restore offset */
- tpu_enq_offset((5000 + l1s.tpu_offset + (L1_BURST_LENGTH_Q * tn)) % 5000);
-
- return 0;
-}
-
-void l1s_win_init(void)
-{
- tdma_schedule(0, _win_setup, 0, 0, 0, -2);
- tdma_schedule(0, _win_cleanup, 0, 0, 0, 9);
-}
-
-void l1s_rx_win_ctrl(uint16_t arfcn, enum l1_rxwin_type wtype, uint8_t tn_ofs)
-{
- int16_t start, stop;
-
- /* TN offset & TA adjust */
- start = DSP_SETUP_TIME;
- start += L1_BURST_LENGTH_Q * tn_ofs;
-
- stop = start + rx_burst_duration[wtype] - 1;
-
- /* window open for TRF6151 */
- /* FIXME: why do we need the magic value 100 ? */
- rffe_mode(gsm_arfcn2band(arfcn), 0);
- trf6151_rx_window(start - 100, arfcn);
-
- /* Window open for ABB */
- twl3025_downlink(1, start);
-
- /* Delay 11 full TDMA frames */
- if (wtype == L1_RXWIN_FB) {
- uint8_t i;
- for (i = 0; i < 11; i++)
- tpu_enq_at(0);
-
- stop -= 11 * L1_TDMA_LENGTH_Q;
- }
-
- /* Window close for ABB */
- twl3025_downlink(0, stop);
-
- /* window close for TRF6151 */
- trf6151_set_mode(TRF6151_IDLE);
-}
-
-void l1s_tx_win_ctrl(uint16_t arfcn, enum l1_txwin_type wtype, uint8_t pwr, uint8_t tn_ofs)
-{
- uint16_t offset;
-
- /* TN offset & TA adjust */
- offset = 28; /* ("+ 32" gives a TA of 1) */
- offset += L1_BURST_LENGTH_Q * tn_ofs;
- offset -= l1s.ta << 2;
-
-#ifdef CONFIG_TX_ENABLE
- /* window open for TRF6151 and RFFE */
- rffe_mode(gsm_arfcn2band(arfcn), 1);
- trf6151_tx_window(offset, arfcn);
-#endif
-
- /* Window open for ABB */
- twl3025_uplink(1, offset);
-
- /* Window close for ABB */
- twl3025_uplink(0, tx_burst_duration[wtype] + offset + 2); // TODO: "+ 2"
-
- /* window close for TRF6151 and RFFE */
- trf6151_set_mode(TRF6151_IDLE);
-}
-
-void tpu_end_scenario(void)
-{
- tpu_enq_sleep();
- tpu_enable(1);
-}